package com.atguigu.tingshu.account.service.impl;

import com.atguigu.tingshu.account.mapper.UserAccountDetailMapper;
import com.atguigu.tingshu.account.mapper.UserAccountMapper;
import com.atguigu.tingshu.account.service.UserAccountService;
import com.atguigu.tingshu.common.constant.SystemConstant;
import com.atguigu.tingshu.common.execption.GuiguException;
import com.atguigu.tingshu.common.result.ResultCodeEnum;
import com.atguigu.tingshu.model.account.UserAccount;
import com.atguigu.tingshu.model.account.UserAccountDetail;
import com.atguigu.tingshu.vo.account.AccountDeductVo;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.math.BigDecimal;

@Slf4j
@Service
@SuppressWarnings({"all"})
public class UserAccountServiceImpl extends ServiceImpl<UserAccountMapper, UserAccount> implements UserAccountService {

	@Autowired
	private UserAccountMapper userAccountMapper;

	@Autowired
	private UserAccountDetailMapper userAccountDetailMapper;
	/**
	 * 注册初始化账号信息
	 * @param userId
	 */
	@Override
	public void addUserAccount(Long userId) {
		//	创建一个账户对象
		UserAccount userAccount = new UserAccount();
		//	赋值:
		userAccount.setUserId(userId);
		userAccount.setTotalAmount(new BigDecimal("100.00"));
		userAccount.setAvailableAmount(new BigDecimal("100.00"));
		userAccountMapper.insert(userAccount);
	}

	@Override
	public BigDecimal getAvailableAmount(Long userId) {
		return userAccountMapper.selectOne(new LambdaQueryWrapper<UserAccount>().eq(UserAccount::getUserId,userId)).getAvailableAmount();
	}

	@Override
	@Transactional(rollbackFor = Exception.class)
	public void checkAndDeduct(AccountDeductVo accountDeductVo) {
		int result = userAccountMapper.checkAndDeduct(accountDeductVo.getUserId(),accountDeductVo.getAmount());
		if (result == 0){
			log.error("余额不足");
			throw new GuiguException(ResultCodeEnum.ACCOUNT_LESS);
		}
		//  将用户的资金流向记录到user_account_detail!
		this.addUserAccountDetail(accountDeductVo.getUserId(),accountDeductVo.getContent(), SystemConstant.ACCOUNT_TRADE_TYPE_MINUS, accountDeductVo.getAmount(), accountDeductVo.getOrderNo());
	}

	public void addUserAccountDetail(Long userId, String title, String tradeTypeMinus, BigDecimal amount, String orderNo) {
		//创建对象
		UserAccountDetail userAccountDetail = new UserAccountDetail();
		userAccountDetail.setUserId(userId);
		userAccountDetail.setTitle(title);
		userAccountDetail.setTradeType(tradeTypeMinus);
		userAccountDetail.setAmount(amount);
		userAccountDetail.setOrderNo(orderNo);
		//保存数据
		userAccountDetailMapper.insert(userAccountDetail);
	}

	@Override
	public IPage<UserAccountDetail> findUserConsumePage(Long userId, Page<UserAccountDetail> userAccountDetailPage) {
		return userAccountDetailMapper.selectPage(userAccountDetailPage,new LambdaQueryWrapper<UserAccountDetail>().eq(UserAccountDetail::getUserId,userId).eq(UserAccountDetail::getTradeType, SystemConstant.ACCOUNT_TRADE_TYPE_MINUS));
	}

	@Override
	public IPage<UserAccountDetail> findUserRechargePage(Long userId, Page<UserAccountDetail> userAccountDetailPage) {
		return userAccountDetailMapper.selectPage(userAccountDetailPage,new LambdaQueryWrapper<UserAccountDetail>().eq(UserAccountDetail::getUserId,userId).eq(UserAccountDetail::getTradeType, SystemConstant.ACCOUNT_TRADE_TYPE_DEPOSIT));
	}
}
